enemy_switch.gml

//spr_EnemyDead is a speparate sprite that contains the image of the enemy rotated slightly.
//Trying to get enemy once hit, to switch to spr_EnemyDead and then fall off screen, at the moment, as soon 
//as player bounces off head he switches back to alive sprite.

//Enemy Movement
hsp = dir * movespeed;
vsp += grav;
sprite_index = spr_enemy

//Horizontal Collision
if (place_meeting(x + hsp, y, obj_wall || obj_GravBlock)) {
  while(!place_meeting(x + sign(hsp), y, obj_wall)) and sprite_index = spr_enemy {
    x += sign(hsp);
  }
  hsp = 0
  dir *= -1
}

//Movement through lava
if (place_meeting(x, y, obj_lava)) {
  vsp = (vsp / 1.1);
}
if (place_meeting(x, y, obj_lava)) {
  hsp = (hsp / 3);
}
x += hsp;
  
//Vertical Collision
if (place_meeting(x, y + vsp, obj_wall || obj_GravBlock)) and sprite_index = spr_enemy {
  while(!place_meeting(x, y + sign(vsp), obj_wall)) {
    y += sign(vsp);
  }
  vsp = 0
}

y += vsp;

//Enemy Collision
if (place_meeting(x, y, obj_player)) {
  if (obj_player.y < y-16) {
    with (obj_player) {
      vsp = -jumpspeed;
      sprite_index = spr_EnemyDead;
    }
  } else {
    game_restart();
  }
} else {
  sprite_index = spr_enemy;
}

if sprite_index = spr_EnemyDead {
  hsp = 0;
  vsp = 2;
}